Math 7, Semester A Review

A vegetable farmer fills  $\frac{2}{3}$    of a wooden crate with  $\frac{5}{7}$    of a pound of tomatoes. How many pounds of tomatoes can fit into one crate?

•  $\frac{10}{21}$   of a pound

•  $1\frac{1}{14}$  pounds

•  $\frac{14}{15}$  of a pound

•  $2\frac{1}{10}$  pounds

Sean is a bookworm. On average, he reads  $1\frac{1}{2}$  pages in  $3\frac{1}{3}$   minutes.

Sean's average unit rate for reading is .... pages per minute.

Ms. Thornton's class visited five freshwater lakes to learn more about the crocodiles and alligators living in them. The class counted the number of species in each lake as shown in the table.

The relationship between the number of crocodiles and the number of alligators is not proportional across all lakes. Only two of the lakes have crocodiles and alligators in the same proportion. Which two lakes are they?

• A. lake A and lake B

• B. lake B and lake C

• C. lake A and lake E

• D. lake C and lake

Which graph shows a proportional relationship?

• graph A

• graph B

• graph C

• graph D

Ronald is preparing lemonade for his friends. To make 6 cups of lemonade, he needs 1 cup of lemon juice. To make 24 cups of lemonade, he needs to proportionally increase the amount of lemon juice to.... cups.

For a charity event, Jean biked at a fixed speed from Pine Bluff to Newberry. The graph shows the distance she rode along the y-axis and the amount of time it took along the x-axis.

The proportionality constant (y to x) is .....

In a shelter, the number of kennels is proportional to the number of dogs. The constant of proportionality in terms of dogs per kennel is 3, and there are 27 dogs in the shelter. How many kennels are there?

• A. 9

• B. 15

• C. 30

• D. 81

James is reading the latest book by his favorite science fiction author. The table shows the number of pages James read over different periods of time. Calculate the proportionality constant from the table in terms of pages per minute.

• A. 0

• B.

  $\frac{1}{2}$

• C. 8

• D. 12

Sanjay bought T-shirts for his friends on the debate team.

The cost of the T-shirts (in dollars) is given by the equation c = 9.5t, where c is the total cost of the T-shirts and t is the number of T-shirts. If Sanjay bought 14 T-shirts, he paid $......

Dory's grandma runs a chicken farm. The number of eggs her hens lay is given by the equation e = 3h, where e is the number of eggs and h is the number of hens. If there are 500 hens on the farm, how many eggs would they lay at this rate?

• A. 1,200

• B. 1,500

• C. 2,000

• D. 2,200